Hydraulic Adaptor, 1/4" MFFOR Plug (04:9/16"-18)

Hydraulic Adaptor, 1/4" MFFOR Plug (04:9/16"-18)

The FS2408X04 Hydraulic Adaptor is a compact hydraulic ORFS plug fitting designed to securely seal unused hydraulic ports and connections in high-pressure systems. Featuring a 1/4" Male Flat Face O-Ring (MFFOR) connection with 9/16"-18 threads, this steel plug provides dependable leak prevention while standing up to demanding shop, agricultural, and industrial hydraulic applications. Built for durability with corrosion-resistant plating, it’s the kind of small fitting that quietly does its job—until the day you really wish you had one in the toolbox.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: FS2408X04
• Product Type: Hydraulic adaptor / ORFS plug
• Connection Style: Male Flat Face O-Ring (MFFOR) Plug
• Thread Size: 9/16"-18
• Dash Size: -04 / 1/4"
• Seal Type: O-Ring Face Seal (ORFS)
• Material: Carbon steel
• Finish: Corrosion-resistant zinc plating
• Configuration: Straight hydraulic plug
• Application: Designed to cap or seal unused hydraulic ports and lines
• Pressure Capability: Suitable for high-pressure hydraulic systems
• Standards Compatibility: Commonly manufactured to SAE hydraulic fitting standards
• Leak Prevention: Flat-face O-ring design helps reduce leakage and vibration-related seepage
• Installation: Hex-head design for easy wrench tightening
• Cross References: Commonly referenced as FS2408-04, FF2408-04, and 229X04

Ideal For

• Sealing unused ORFS hydraulic ports
• Agricultural, industrial, and heavy equipment hydraulic systems
• Hydraulic repair shops and maintenance trucks
• Preventing contamination from dirt, moisture, and debris
• Anyone who knows hydraulic leaks always seem to start five minutes before quitting time.